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The present invention relates to an optical recording medium having a protective layer and a phase-change recording layer on a substrate, said protective layer containing a metallic oxysulfide and an optical recording medium having a protective layer and a phase-change recording layer, said protecti

The present invention relates to an optical recording medium having a protective layer and a phase-change recording layer on a substrate, said protective layer containing a metallic oxysulfide and an optical recording medium having a protective layer and a phase-change recording layer, said protective layer being formed by sputtering using a target comprising a metallic oxysulfide.

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The present invention relates to an optical recording medium having a protective layer and a phase-change recording layer on a substrate, said protective layer containing a metallic oxysulfide and an optical recording medium having a protective layer and a phase-change recording layer, said protecti

The present invention relates to an optical recording medium having a protective layer and a phase-change recording layer on a substrate, said protective layer containing a metallic oxysulfide and an optical recording medium having a protective layer and a phase-change recording layer, said protective layer being formed by sputtering using a target comprising a metallic oxysulfide. yrrolidone, N-vinylimidazole, vinyl acetate, vinyl ethers, or halogen-containing olefinic compounds, where the solids (I) are used as fillers in these polymers. 2. A composite as claimed in claim 1, where the at least one conventional separator is selected from the class consisting of a microporous polyolefin film and a polytetrafluoroethylene film. 3. A composite as claimed in claim 1, where the solid I is selected from the class consisting of an inorganic solid, selected from the class consisting of oxides, mixed oxides, silicates, sulfates, carbonates, phosphates, nitrides, amides, imides and carbides of elements of the 1st,2nd,3rdor 4thprincipal group, or the 4thtransition group, of the periodic table; a polymer selected from the class consisting of polyethylene, polypropylene, polystyrene, polytetrafluoroethylene and polyvinylidene fluoride; polyamides; polyimides; and a solid dispersion comprising a polymer of this type; and a mixture of two or more of these. 4. A composite as claimed in claim 1, where the polymer IIa has, along the chain, terminally and/or laterally, at least one reactive group RGa which is capable of hydrogen abstraction in the triplet excited state when exposed to heat and/or UV radiation, and has, along the chain, terminally and/or laterally, at least one group RGb different from RGa and coreactive with RGa, where on average across all of the polymer molecules there is at least one group RGa and at least one group RGb, where the group RGb is selected from groups which can interact with excited Norrish II photoinitiator groups. 5. A composite as claimed in claim 1, where the polymer IIa has, along the chain, terminally and/or laterally, at least one reactive group RGa which is capable of hydrogen abstraction in the triplet excited state when exposed to heat and/or UV radiation, and has, along the chain, terminally and/or laterally, at least one group RGb different from RGa and coreactive with RGa, where on average across all of the polymer molecules there is at least one group RGa and at least one group RGb, where the group RGb is selected from groups which can interact with excited Norrish II photoinitiator groups. 6. A composite as claimed in claim 1, where the polymer IIa is a polymer or copolymer of an acrylate or methacrylate and has reactive groups RGa which contain benzophenone units and reactive groups RGb which contain dihydrodicyclopentadiene units. 7. Composite as claimed in claim where the polymer IIb is selected from the class consisting of a polymer or copolymer of vinyl chloride, of acrylonitrile or of vinylidene fluoride; a copolymer made from vinyl chloride and vinylidene chloride, vinyl chloride and acrylonitrile, vinylidene fluoride and hexafluoropropylene or vinylidene fluoride with hexafluoropropylene; a terpolymer made from vinylidene fluoride and hexafluoropropylene, and also a member of the class consisting of vinyl fluoride, tetrafluoroethylene and trifluoro-ethylene. 8. Method of using at least one composite as claimed in claim 1, as a separator. 9. Method of using a composite as claimed in claim 1, where the at least one conventional separator is selected from the class consisting of a microporous polyolefin film and a polytetrafluoroethylene film, as a separator. 10. Method of using a composite as claimed in claim 1, where the solid I is selected from the class consisting of an inorganic solid, selected from the class consisting of oxides, mixed oxides, silicates, sulfates, carbonates, phosphates, nitrides, amides, imides and carbides of elements of the 1st,2nd,3rdor 4thprincipal group, or the 4thtransition group, of the periodic table; a polymer selected from the class consisting of polyethylene, polypropylene, polystyrene, polytetrafluoroethylene and polyvinylidene fluoride; polyamides; polyimides; and a solid dispersion comprising a polymer of this type; and